drm/i915/icl: Enable RC6 and RPS in Gen11

AFAICT, once the new interrupt is in place, the rest should behave the
same as Gen10.

v2: Update ring frequencies (Sagar)
v3: Rebase.

Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180405140052.10682-5-mika.kuoppala@linux.intel.com

drivers/gpu/drm/i915/i915_debugfs.c

@@ -1215,20 +1215,20 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
 		max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 0 :
 			    rp_state_cap >> 16) & 0xff;
 		max_freq *= (IS_GEN9_BC(dev_priv) ||
-			     IS_CANNONLAKE(dev_priv) ? GEN9_FREQ_SCALER : 1);
+			     INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
 		seq_printf(m, "Lowest (RPN) frequency: %dMHz\n",
 			   intel_gpu_freq(dev_priv, max_freq));
 
 		max_freq = (rp_state_cap & 0xff00) >> 8;
 		max_freq *= (IS_GEN9_BC(dev_priv) ||
-			     IS_CANNONLAKE(dev_priv) ? GEN9_FREQ_SCALER : 1);
+			     INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
 		seq_printf(m, "Nominal (RP1) frequency: %dMHz\n",
 			   intel_gpu_freq(dev_priv, max_freq));
 
 		max_freq = (IS_GEN9_LP(dev_priv) ? rp_state_cap >> 16 :
 			    rp_state_cap >> 0) & 0xff;
 		max_freq *= (IS_GEN9_BC(dev_priv) ||
-			     IS_CANNONLAKE(dev_priv) ? GEN9_FREQ_SCALER : 1);
+			     INTEL_GEN(dev_priv) >= 10 ? GEN9_FREQ_SCALER : 1);
 		seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
 			   intel_gpu_freq(dev_priv, max_freq));
 		seq_printf(m, "Max overclocked frequency: %dMHz\n",
@@ -1811,7 +1811,7 @@ static int i915_ring_freq_table(struct seq_file *m, void *unused)
 
 	min_gpu_freq = rps->min_freq;
 	max_gpu_freq = rps->max_freq;
-	if (IS_GEN9_BC(dev_priv) || IS_CANNONLAKE(dev_priv)) {
+	if (IS_GEN9_BC(dev_priv) || INTEL_GEN(dev_priv) >= 10) {
 		/* Convert GT frequency to 50 HZ units */
 		min_gpu_freq /= GEN9_FREQ_SCALER;
 		max_gpu_freq /= GEN9_FREQ_SCALER;
@@ -1827,7 +1827,7 @@ static int i915_ring_freq_table(struct seq_file *m, void *unused)
 		seq_printf(m, "%d\t\t%d\t\t\t\t%d\n",
 			   intel_gpu_freq(dev_priv, (gpu_freq *
 						     (IS_GEN9_BC(dev_priv) ||
-						      IS_CANNONLAKE(dev_priv) ?
+						      INTEL_GEN(dev_priv) >= 10 ?
 						      GEN9_FREQ_SCALER : 1))),
 			   ((ia_freq >> 0) & 0xff) * 100,
 			   ((ia_freq >> 8) & 0xff) * 100);

drivers/gpu/drm/i915/intel_pm.c

@@ -6572,7 +6572,7 @@ static void gen6_init_rps_frequencies(struct drm_i915_private *dev_priv)
 
 	rps->efficient_freq = rps->rp1_freq;
 	if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv) ||
-	    IS_GEN9_BC(dev_priv) || IS_CANNONLAKE(dev_priv)) {
+	    IS_GEN9_BC(dev_priv) || INTEL_GEN(dev_priv) >= 10) {
 		u32 ddcc_status = 0;
 
 		if (sandybridge_pcode_read(dev_priv,
@@ -6585,7 +6585,7 @@ static void gen6_init_rps_frequencies(struct drm_i915_private *dev_priv)
 					rps->max_freq);
 	}
 
-	if (IS_GEN9_BC(dev_priv) || IS_CANNONLAKE(dev_priv)) {
+	if (IS_GEN9_BC(dev_priv) || INTEL_GEN(dev_priv) >= 10) {
 		/* Store the frequency values in 16.66 MHZ units, which is
 		 * the natural hardware unit for SKL
 		 */
@@ -6923,7 +6923,7 @@ static void gen6_update_ring_freq(struct drm_i915_private *dev_priv)
 
 	min_gpu_freq = rps->min_freq;
 	max_gpu_freq = rps->max_freq;
-	if (IS_GEN9_BC(dev_priv) || IS_CANNONLAKE(dev_priv)) {
+	if (IS_GEN9_BC(dev_priv) || INTEL_GEN(dev_priv) >= 10) {
 		/* Convert GT frequency to 50 HZ units */
 		min_gpu_freq /= GEN9_FREQ_SCALER;
 		max_gpu_freq /= GEN9_FREQ_SCALER;
@@ -6938,7 +6938,7 @@ static void gen6_update_ring_freq(struct drm_i915_private *dev_priv)
 		const int diff = max_gpu_freq - gpu_freq;
 		unsigned int ia_freq = 0, ring_freq = 0;
 
-		if (IS_GEN9_BC(dev_priv) || IS_CANNONLAKE(dev_priv)) {
+		if (IS_GEN9_BC(dev_priv) || INTEL_GEN(dev_priv) >= 10) {
 			/*
 			 * ring_freq = 2 * GT. ring_freq is in 100MHz units
 			 * No floor required for ring frequency on SKL.
@@ -8144,8 +8144,6 @@ static void intel_enable_rps(struct drm_i915_private *dev_priv)
 		cherryview_enable_rps(dev_priv);
 	} else if (IS_VALLEYVIEW(dev_priv)) {
 		valleyview_enable_rps(dev_priv);
-	} else if (WARN_ON_ONCE(INTEL_GEN(dev_priv) >= 11)) {
-		/* TODO */
 	} else if (INTEL_GEN(dev_priv) >= 9) {
 		gen9_enable_rps(dev_priv);
 	} else if (IS_BROADWELL(dev_priv)) {